A bloody Hatfields and McCoys-type feud between two families  one rich, one poor  spirals out of control in a desolate, rural area of Brazil. The issue is disputed land, but it's addressed with a series of revenge killings that winnow away the number of heirs in each clan. When his father (José Dumont) orders him to continue the cycle of violence against his neighbors, Tonho (Rodrigo Santoro), the oldest son in the poverty-stricken Breves clan, balks. Inspired by his younger brother Pacu (Ravi Ramos Lacerda) and a meeting with two vagabond performers, Tonho decides to run away with a traveling circus. But there's no easy way to escape family ties when the drive for vengeance is so deep-seated. All the elements are in place for a powerful drama from Walter Salles, director of the acclaimed Brazilian film "Central Station." "Behind the Sun" features vibrant acting, stunning cinematography and universal truths. But the desert setting and the general agony that abounds may leave you parched.